Type-writing machine.



G. A. SEIB. TYPE WRITING MACHINE. APZPLIOATION PILED JUNE 20,- 1913.

1,079,957, Patented Dec. 2, 1913.

Fle l WHTNEESEZ i MM INVENTUR;

HEATTURNEY;

UNITED STATES PATENT OFFICE.

.' GEORGE A. SEIB, OFILION, NEW YORK, ASSIGNOR T REMINGTON TYPEWRITERCOMPANY, OF ILION', NEW YORK, A CORPORATION OF NEW YORK.

TYPE-WRITING MACHINE.

, Specification of Letters Patent. 7

Patented Dec. 2, 1913.

Application filed June 20, 1913. Serial No. 774,767.

Machines, of which the following-is a specification.

My invention relates to typewriting inachines and more particularly tomeans for preventing the type faces from being injured by collisionbetween the bars at or near the printing point.

()ne object of my invention, stated, is to, provide simple and eflicientmeans of the character specified.

To the above and other ends which will hereinafter appear, my inventionconsists in the features of. construction, arrangements of parts andcombinations of dev1ces set forth in the following description andparticularly pointed out in the appended In the accompanying drawing,Figure 1 is a skeletonized side elevation partly in section of asufficient number of parts of one form of typewriting machine showing myinvention in its embodiment therein. Fig. 2 is an enlarged detailfragmentary sectional view of a type bar constructed in accordance .ingor writing stencil sheets or cards such as is disclosed'in theapplication of A. W. Smith, Serial; No. 752,848, filed March 8,

' 1913, It should be understood, however, 40

that the invention may be embodied in var1ous styles of typewritin'gmachines whether or not such machines be equipped with ne e-.

dle faced types, although the invention was devised more especially foruse in machines which employ needle faced types,

The invention is shown in the present 'case embodied in a front-strikemachine in which a flat face platen 1 is carried by a carriage (notshown), the carriage moving over the top plate of the machine andreceiving a letter space movement .at each printing? operation. Thesegmentally arranged type bars, each designated as a whole by thegenerally reference numeral 2, are mounted to swing 'upwardly andrearwardly to.' impact at the printing point against the front face ofthe platen. Each type bar is pivoted to a hanger 3 secured to,a type barsegment't. Each type bar, as shown in Fig. 2, is formed with avtransverse opening 5 shaped to receive a conical stem 6 of theassociated type black, designated as a whole by the reference numeral 7.A drive fit is thus provided between each type bar and its block. Eachblock, shown in the present instance, comprises a cup-like portion orsocket 8 which receives the needles 9 which form the type at their outerpointed ends. The needles of each type may be secured in place in theirsocket 8 by soft-metal as indicated at 10.

In order to prevent the needle point type faces from being injured whenone bar collides with another at or near the printing point, asindicated in Fig. 1, I provide each type bar with a contact member,cushion, pad or buffer 11 on the rear side thereof. This cushion may bemade of any suitable material which is softer than the metal from whichthe type bar or the printing faces of the type are formed. In practice,I have found piano felt an excellent material from which to form thepads or cushions. cushion is cylindrical in form and preferably has itsaxis extending transversely of the bar and is located in the rear orback of the printing face of the type.

In order to secure each pad to its bar I prefer'to form each type barwith a cylindrical socket- 12 in .the rear side or face thereof and backof the type block. This socket is. formed by a flange whichis annular inform and extends transversely of and 'rearwa-rdly, from the type bar andhas its open mouth at the rear of the bar to receive the associatedcylindrical pad 11. One end of this latter is seated in the socketagainst the bottom wall 13 thereof and the other end of the pad projectsoutwardly or downwardly beyond the rear side of the type bar and beyondthev wall of the socket. The pads may be secured, in place in theirsock- Each ets and against accidental detachment therefrom by anysuitable means,- al thoug'hI prefer to secure each pad in place by athreaded connection. As shown this threaded connection is established byforming the inner side wall of each socket with a screw thread 14.

The pads may be screwed into place in their sockets, thus effectivelyconnecting each pad to its bar. I

In Fig. 3 I have shown a modified form of construction in which the typebar proper 2 is of standard construction. In this case a sleeve 15,separate anddisti'nct from the bar, is slotted in one side, as at 16, toreceive the body. portion of the bar. The sleci eeis adapted to surroundthe apert-ured headof the bar as shown, the body portion of the barbeing seated in the slot 16. A

thread 17 is tapped in the inner wall of the f sleeve at the lower endportion thereof, as

the parts appear in Fig. 3 and each sleeve 15 is brazed to. its typebar; Otherwise the parts are constructed as previously described and thesame reference numerals will be employed to designate the parts whichcorrespond to those previously referred to.

"Normally the projecting ends of the pads bear against a segmental typebar supp0rt 18, so that the pads in addition to preventing injury to thetype faces act to cushion the type bars in their return movements.

Any suitable means may be employed for actuating the type bars. In thepresent instance-1 have shown-type actions such as those ordinarilyemployed in theNos. 10 and 11 Remington machines in which key levers 19are fulcrumed on a fulcrum bar 20 and 1 are provided with the usualfinger keys 21.-

Each key lever isfconnected by a linloQQ to a sub-lever 23, the hangers24 of which are supported on a member 25- eonneeted or formed integral.with the type bar support 18. Links 26 are interposed between thesub-levers 2-3 and the type bars and returning springs 27 are eachconnected at one end to a key lever and at its opposite end to a hook28. A universal bar 29 extends beneath the key levers and'is connectedby links 30 to crank arms 31'which project from the rock shaft 32.centrallyQdiSposed crank arm 33 also'projects from this rock shaft andis connected at its rear end to an upwardly extending link 34. Thelink34 in turn is connected in the usual manner to the dog rocker (notshown) of the escape- .ment mechanism by which the step-by-step feed ofthe carriage is controlled.

The construction is such that if one type bar should collide withanother atorn'ear the printing point, and before the first bar tobeactuated has an 'opportunity to returnto the normal position as shown inFig. '1, theneedle pointed type face on the second actuated-bar will bebrought into contact withthg pad on the first bar, thus prevent- 'in'g.injury to the type face on that bar which v without injury to the typefaces.

collides with the one at the printing point.

which constitutes the pads enables It Wlll be understood that the padsconstructed and arranged in the manner described are likewise effectiveto prevent an injury to the printing faces of the type whatever may bethe character of the type employed. It will be seen that by my inventionI have provided simple and efficient means to prevent injury to theprinting faces of types in a typewriting machine; and that in the formof construction shown in Fig. 3 the means'in question may-be applied totype bars of standard construction now in use.

Various changes may. be made without departing from the spirit and scopeof my invention;

What I claim as new and desire by Letters Patent, is

1. A metallic typebar carrying a metallic type and having a socket inwhich is seated a buffer of material softer than the type and againstwhich a part of another type bar is adapted to strike.

2. A type bar having a socket in the rear of the impact face of thetype, and a pad seated in said socket.

3. A type bar having an interiorly threaded socket on the rear sidethereof, and a pad threaded into said socket.

4. A type bar, a pad thereon, and a threaded connection between saidtype bar and pad.

5. A type bar having a threaded member on the rear of the type bar andback of the impact face of the type and a pad having a threadedconnection with said member.

6. A type bar having a rea'rwardly opening socket, and a pad seated andsecured in said socket and extending rearwardly from the type'bar. v

7. A type bar having a needle faced type and a socket in the rear ofpad-seated and secured in said socket and extending rearwardly from thetype bar.

8. A series of type bars mounted to strike at a common printing point.-each of said type bars having a pad in the rear of the impact face ofthe type and attached at the end of the pad nearest the bar andextending rearwardly from the bar and from its point of attachment. y a

9. A type bar having a cylindrical socket. the axis of which extendstransversely of the bar, and a cylindrical pad seated in said socketandextending beyond the walls there of to-form abuffer. 10. A type barthreaded cylindrical to secure having an interiorly socket arranged inthe into said cylindrical socket on the rear of the type bar, and acontact member seated in said socket, said rear or back of the typeblock, and a eylin-.

forms a the type, and a member being made of a material softer Signedfit1hon, in.the county of Her-kithEm-thatilpm which the type bar isformed: Iner apdLStg te. ofxNe'w. York, this 18th day 12. A ty e berghaving an interiorly of, lime," KI D'.' 1913. threaded socket formed inthe body portion" v 5 of the type bar, said socket having an open mouthin the rear of the bar, and :1 contact Witnesses: member of materialsofter than the type MARY G. GLEASON,

bar threaded into said socket. RUTH CONE.

GEORGE A. SEIB.

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